Atmel SMART SAM4C Series User Manual page 9

3.3 Function Blocks
3.3.1 Processor
The SAM4C32-EK board is equipped with a SAM4C32 device in an LQFP100 package.
Figure 3-3. SAM4C32 Processor
R1.R2 should close to SAM4C32.
PA30
XOUT
XIN
PA31
{7} TMP0
{4} SHDN
{7} FWUP
3.3.2 Clock Distribution
The SAM4C32-EK board includes two clock systems (see
Table 3-1. Components Clock System
Qty
1
1
Figure 3-4. Clock System
{4}
RTC_32
C1 C1 R4 R4
18pF 18pF
C19 C19
18pF 18pF
9 SAM4C32-EK [USER GUIDE]
Atmel-11253A-ATARM-SAM4C32-EK-UserGuide_17-Sep-14
MN1 MN1
Do Not Populate
R2 0R/DNP R2 0R/DNP DNP DNP
50
PA30/XOUT
51
PA31/XIN
R1 0R/DNP R1 0R/DNP DNP DNP
XIN32 40
XIN32
XOUT32 41
XOUT32
48
NRST
NRST
TST 38
TST
TMP0 39
TMP0
SHDN 37
SHDN
JTAGSEL 36
JTAGSEL
PC9 29
ERASE/PC9
FWUP 35
FWUP
PB0 26
TDI/PB0
PB1 30
TDO/TRACESWO/PB1
PB2 28
TMS/SWDIO/PB2
PB3 27
TCK/SWCLK/PB3
VDDIN VDDOUT
Description
Crystal for Internal Clock 8 MHz
Crystal for RTC Clock 32.768 kHz
R3 0R/DNP R3 0R/DNP
DNP DNP
0R 0R XIN32
Y1 Y1
32.768 kHz 32.768 kHz
XOUT32
0R 0R
R5 R5
ATMEL
Cortex-M4 Processor
SAM4C32 LQFP100
VDDCORE VDDPLL VDDLCD VDDIO
Table 3-1 and
C20 C20 18pF 18pF
C24 C24 18pF 18pF
43 PB4
PB4
45 PB5
PB5
1 PB6
PB6
2 PB7
PB7
6 PB8
PB8
13 PB9
PB9
14 PB10
PB10
15 PB11
PB11
16 PB12
PB12
81 PB13
PB13/AD3
17 PB14
PB14
18 PB15
PB15
95 PB16
PB16
97 PB17
PB17
3
PB18
PB18
5
PB19
PB19
88
PB20
PB20
87 PB21
PB21
7 PB22
PB22
80 PB23
PB23/AD4
10 PB24
PB24
9 PB25
PB25
93 PB26
PB26
91 PB27
PB27
94 PB28
PB28
12 PB29
PB29
8 PB30
PB30
79 PB31
PB31/AD5
47 PC0
PC0
31 PC1
PC1
58 PC2
PC2
57 PC3
PC3
56 PC4
PC4
55
PC5
PC5
32
PC6
PC6
46
PC7
PC7
54 PC8
PC8
77
ADVREF
VDDBU
Figure 3-4).
Component Assignment
Y2
Y1
R6 0R R6 0R
XOUT
Y2 Y2
8MHz 8MHz
XIN
R9 0R R9 0R
VDDREF